R: Dyadic Wavelet Transform

mw {Rwave} | R Documentation

## Dyadic Wavelet Transform

### Description

Dyadic wavelet transform, with Mallat's wavelet. The reconstructed signal preserves locations and values at extrema.

### Usage

    mw(inputdata, maxresoln, filtername="Gaussian1", scale=FALSE, plot=TRUE)

### Arguments

`inputdata` | either a text file or an R object containing data.
`maxresoln` | number of decomposition scales.
`filtername` | name of filter (either Gaussian1 for Mallat and Zhong's wavelet or Haar wavelet).
`scale` | when set, the wavelet transform at each scale is plotted with the same scale.
`plot` | indicate if the wavelet transform at each scale will be plotted.

### Details

The decomposition goes from resolution 1 to the given maximum resolution.

### Value

Structure containing

`original` | original signal.
`Wf` | dyadic wavelet transform of signal.
`Sf` | multiresolution of signal.
`maxresoln` | number of decomposition scales.
`np` | size of signal.

### References

See discussions in the text of “Practical Time-Frequency Analysis”.

### See Also

`dwinverse`, `mrecons`, `ext`.

[Package Rwave version 2.4-8 Index]